package com.wlyc.providerconsumer_01;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class RabbitConsumer {
	private static final String QUEUE_NAME = "queue_demo";
	private static final String IP_ADDRESS = "192.168.28.52";
	private static final int PORT = 5672;
	
	public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
		Address[] addresses = new Address[] {
				new Address(IP_ADDRESS, PORT)
		};
		
		ConnectionFactory factory = new ConnectionFactory();
		factory.setUsername("root");
		factory.setPassword("root");
		
		// 这里的连接方式与生产者的demo略有不同，注意辨别区别
		Connection connection = factory.newConnection(addresses); // 创建连接
		final Channel channel = connection.createChannel(); // 创建信道
		channel.basicQos(64); // 设置客户端最多接收未被 ack 的消息个数
		Consumer consumer = new DefaultConsumer(channel) {
			@Override
			public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
				System.out.println("recv message: " + new String(body));
				
				try {
					TimeUnit.SECONDS.sleep(1);
				} catch ( InterruptedException e ) {
					e.printStackTrace();
				}
				channel.basicAck(envelope.getDeliveryTag(), false);
			}
		};
		
		channel.basicConsume(QUEUE_NAME, consumer);
		
		// 等待回调函数执行完毕之后，关闭资源
		TimeUnit.SECONDS.sleep(5);
		channel.close();
		connection.close();
	}
}





















